XML 152 R123.htm IDEA: XBRL DOCUMENT v3.21.1
INCOME TAX - Deferred tax assets and liabilities (Details) - CNY (¥)
¥ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Deferred tax assets:        
Allowance for accounts receivable ¥ 1,959 ¥ 12    
Government subsidy 1,549 3,127    
Accrued expenses 24,597 27,601    
Asset retirement obligation 19,227 13,110    
Net operating losses carry forwards 386,999 267,159    
Total gross deferred tax assets 434,331 311,009    
Valuation allowance on deferred tax assets (328,821) (205,976) ¥ (155,852) ¥ (152,241)
Deferred tax assets, net of valuation allowance 105,510 105,033    
Deferred tax liabilities:        
Property and equipment (154,480) (171,656)    
Intangible assets (195,093) (97,102)    
Prepaid land use rights (1,572) (1,612)    
Leases (70,284) (9,568)    
Accounts receivable   (4,836)    
Total deferred tax liabilities (421,429) (284,774)    
Net deferred tax liabilities (315,919) (179,741)    
Analysis as:        
Deferred tax assets 146,088 72,931    
Deferred tax liabilities (462,007) (252,672)    
Net deferred tax liabilities ¥ (315,919) ¥ (179,741)